JavaScript의 Web API인 Intersection Observer가 메인 스레드에 미치는 영향은 무엇인가요?

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Today's Technical Question

JavaScript의 Web API인 Intersection Observer가 메인 스레드에 미치는 영향은 무엇인가요?

Detail

• Track: CS
• Category: Browser Performance
• Follow-up 1: 스크롤 이벤트 방식과 비교하여 성능상 어떤 이점이 있나요?
• Follow-up 2: 옵저버의 threshold 옵션은 어떤 방식으로 작동하나요?
• Reference hint: 일반 프론트엔드 핵심 역량
• Reference question: 매일메일

• File: daily-frontend-questions/2026-06-15.md
• Source mode: ai+reference

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